With the installation of larger valves it will not only generate sufficient flow for good top end horsepower but the vortec s high swirl and port velocity also means exceptionally good low end output.
Best sbc cast iron heads.
Always prefer closed chamber heads as the alternative for the budget friendly cast iron models.
I would ujust send yours out and have them ported.
The production based iron vortec head represents one of the best budget investments for power for the small block chevy.
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The casting quality is as good as the best aftermarket iron heads and its flow capability on a valve size for size basis more than matches the phase 6 aluminum bowtie heads.
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If you can afford them and also seek a performance upgrade then go for aluminum heads that deliver extra options for upgrading power and torque.
All you have to do is decide which is best for your application.
Which are the best sbc cast iron heads available today on the market.
The aluminum heads will disapate the heat faster and usualyl allow a little more compression.
Best 10 sbc cast iron cylinder heads tested by reviewers.
Continuosly improved since it s 1987 introduction the sportsman ii is still the industry s most popular cast iron high performance head.
We aggregated a product reviews from various trustworthy sources authority websites buying guides consumer forums and other review websites.
We researched and found the easiest for beginners.
The best news is that all the cylinder heads in this story represent a solid performance investment for a street small block.
Featuring rightcast 200cc intake runners fast burn chambers and your choice of angled or straight plugs they re good for 30 70 hp increases right out of the box.
This is essential since it directly affects your purchase.
Best sbc cast iron head.
The easiest way to bolt on 30 70hp.
It s best not to take open chamber heads even if it hurts the pocket.
As far as the iron heads making more power i don t see it but thats me.